64673268 has 48 divisors (see below), whose sum is σ = 166634496. Its totient is φ = 19358560.

The previous prime is 64673243. The next prime is 64673341. The reversal of 64673268 is 86237646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8005 + ... + 13907.

It is an arithmetic number, because the mean of its divisors is an integer number (3471552).

Almost surely, 2^64673268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64673268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83317248).

64673268 is an abundant number, since it is smaller than the sum of its proper divisors (101961228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64673268 is a wasteful number, since it uses less digits than its factorization.

64673268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6004 (or 6002 counting only the distinct ones).

The product of its digits is 290304, while the sum is 42.

The square root of 64673268 is about 8041.9691618409. The cubic root of 64673268 is about 401.3977517029.

The spelling of 64673268 in words is "sixty-four million, six hundred seventy-three thousand, two hundred sixty-eight".